### sup_data

Data used in analysis not from the Medicare claims on the NBER aging servers

* `acs_5year_2012_clean.csv`: Zip-code level income from the 2012 ACS (5 year estimates)
* `icl_oopt_std_amts_sample.csv`: Donut hole limit and OOP limit for years in sample
* `icl_std_amts.csv`: Donut hold limits for all years
* `ndc9_atc4_xwalk_20pct.csv`: Crosswalk from ndc9 codes (labeler + product components of 11-digit codes) to atc codes, generated by 02_features/get_drug_info
